Cam chain noise.. again?

[davidkent]

Do you mean there is only 2 notches left to take up the slack on the chain or 2 notches from the front of the tensioner where it pushes against the guide or 2 notches left in these in the tensioner? 2 from the guide side is good 2 notches from the back is bad.

There is a some stretch on the chain as the dots are behind the cam cap marks.

Rotate the rotor counter clockwise until the marks line up again and check it the marks stay the same and do this about 4 more times and see if there are any changes in the line up. if there is any change the chain has tight spots which may be the cause of the slight rattle you say you have.

With the cams in this position you should be able to slide the feeler guage in between the cam lobe and bucket over the valve on the 4 valves on the 1st cylinder . See example in page 3-6 on of the manual

Rotate the rotor counter clockwise 180degrees and you should be able to check the clearance of the no 2 cylinder

Another 180 and check the no 4 cylinder and a further 180 check the no 3 cylinder

Valve clearance (cold)

Intake valve
0.11
0.20 mm Ideally the 0.11 should slide in nicely and the 0.20 should not slide in. If .20 slides in easily there is to much clearance

Exhaust valve
0.21
0.30 mm Ideally the 0.21 should slide in nicely and the 0.30 should not slide in. If .30 slides in easily there is to much clearance


What you are doing is really ruling out causes of the noise.

I presume you check the downpipes for small holes which can give really funny sounds

Couldn't find much in the manual unless im being poor.

When I take the tensioner out, I can pull it out to full lengths by 2 more clicks. it isn't fully extended, but in another 2 clicks it will be.

I've rotated it several times counter clockwise, and the dors stay exactly the same as they are in the pics, no different at all, if anything I've lined the T up a touch better and they've all been pretty much bang on.

The results I got are:

Cylinder 1 Inlet 0.15mm for both
Cylinder 1 Exhaust 0.23 for both (0.20 was easy and 0.25 needed a little more friction though not mega tight.

Cylinder 2 Inlet 0.13mm Both
Exhaust 0.25mm Both

Cylinder 3 Inlet 0.15mm was about right
Cylinder 3 Exhaust 0.25mm Both

Cylinder 4 Inlet 0.15-0.18 for Both
On the exhaust side, the valve closer to cylinder 3 was 0.25 but the valve closest to me was more like 0.23.

Are these reasonable, I'm trying to compare with your results now

Thanks